Prince William and Duchess Kate, pictured at an even last year. / Jeff J Mitchell Getty Images

by Andrea Mandell, USA TODAY

by Andrea Mandell, USA TODAY

When the grim news hit Twitter on Friday that Duchess Kate's hospital nurse reportedly took her own life after being crank-called by two Australian DJs pretending to be the Queen and Prince Charles, #RIPJacintha began gaining steam on the social platform, and celebs reacted quickly.

British illusionist Derren Brown had a different take from across the pond. "Mm. Yesterday derision & so little sympathy here for the nurse," he tweeted. "Today nothing but. (& a few of course presuming sinister royal conspiracy.)"

Meanwhile, Piers Morgan seemed to have the shock jocks' back. "The dumb Aussie DJs' prank was silly, but they clearly never expected to be taken seriously, let alone possibly cause someone's suicide," he tweeted.

At a luncheon in Hollywood for March of Dimes, Alyson Hannigan was shocked to hear the news. "What?" she said. "Oh my god. That is horrific."